(* Title: Zippy/zippy_show_mixin_base.ML Author: Kevin Kappelmann *) signature ZIPPY_SHOW_MIXIN_BASE = sig type @{AllT_args} t val pretty : Proof.context -> @{AllT_args} t SpecCheck_Show.show end functor Zippy_Show_Mixin_Base(A : sig type @{AllT_args} t val pretty : Proof.context -> @{AllT_args} t SpecCheck_Show.show end ) : ZIPPY_SHOW_MIXIN_BASE = A